SOLUTION: Assume that the population of heights of male college students is approximately normally distributed with mean of 69.66 and standard deviation of 6.08 inches. A random sample of 84
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Question 712542: Assume that the population of heights of male college students is approximately normally distributed with mean of 69.66 and standard deviation of 6.08 inches. A random sample of 84 height is obtained. find the mean and standard error of the distribution. find P(x>68.75) Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Assume that the population of heights of male college students is approximately normally distributed with mean of 69.66 and standard deviation of 6.08 inches.
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A random sample of 84 height is obtained. find the mean and standard error of the distribution of sample means.
mean of the sample means = 69.66
std of the sample means = 6.08/sqrt(84) = 0.6634
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Find P(x-bar > 68.75)
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z(68.75) = (68.75-69.66)/0.6634 = -1.3718
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P(x-bar > 68.75) = P(z > -1.3618) = 0.9149
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Cheers,
Stan H.
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